title: Azido-(η(5)-penta-methyl-cyclo-penta-dien-yl)[2-(pyridin-2-yl)phen-yl]iridium(III).
abstract: In the title compound, [Ir(C10H15)(C11H8N)(N3)], the Ir(III) ion is coordinated by three anionic ligands, namely, penta-methyl-cyclo-penta-dienyl (Cp*(-)), 2-(pyridin-2-yl)phenyl (ppy(-)) and azide (N3 (-)), and adopts a three-legged piano-stool geometry The coordination mode of N3 (-) is typical for Cp*Ir(III)-N3 complexes, with an Ir-N(N3) bond length of 2.125 (2) Å and an Ir-N=N bond angle of 116.5 (2)°. The N3 (-) ligand is almost linear [N=N=N = 176.0 (3)°], and the N=N bond length between the central and coordinating N atom and that between the central and non-coordinating terminal N atom are 1.194 (3) and 1.157 (3) Å, respectively. For the ppy(-) ligand, the Ir-C and Ir-N bond lengths are 2.066 (3) and 2.079 (3) Å, respectively, which are rather close to each other, compared to the related Ir(III)- or Rh(III)-ppy complexes. The Ir-C(Cp*) bond lengths vary in the range 2.163 (2)-2.232 (2) Å, indicating a strong trans influence of the cyclo-metallated C-donor atom of the ppy(-) ligand.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, Tsushimanaka 3-1-1, Okayama, 700-8530, Japan.
authors.forename: Keita
authors.initials: K
authors.lastname: Ariyoshi
authors.forename: Takayoshi
authors.initials: T
authors.lastname: Suzuki